A- Choose the correct answer. 1. A function's single most important role is to: a. reduce program size. c. accept arguments and return value. 2. In a class definition, private data or functions are accessible: a. to any function in the program. c. to member functions of that class. b. give a name to a block of code. d. organize a program into conceptual units. b. only if you know the password. d. only to public members of the class. 3. A member function can always access the data: a. in the object of which it is a member. c. in any object of the class of which it is a member. b. in the class of which it is a member. d. in the public part of its class.